What is 91.exe?
91.exe is part of Microsoft® Windows® Operating System and developed by Microsoft Corporation according to the 91.exe version information.
91.exe's description is "Windows NT Setup Executable"
91.exe is usually located in the 'c:\Documents and Settings\roger\Desktop\m\10\' folder.
Some of the anti-virus scanners at VirusTotal detected 91.exe.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on 91.exe:
| Property | Value |
|---|---|
| Product name | Microsoft® Windows® Operating System |
| Company name | Microsoft Corporation |
| File description | Windows NT Setup Executable |
| Internal name | SETUP.EXE |
| Original filename | SETUP.EXE |
| Legal copyright | © Microsoft Corporation. All rights reserved. |
| Product version | 5.1.2600.5512 |
| File version | 5.1.2600.5512 (xpsp.080413-2111) |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Microsoft® Windows® Operating System |
| Company name | Microsoft Corporation |
| File description | Windows NT Setup Executable |
| Internal name | SETUP.EXE |
| Original filename | SETUP.EXE |
| Legal copyright | © Microsoft Corporation. All rights.. |
| Product version | 5.1.2600.5512 |
| File version | 5.1.2600.5512 (xpsp.080413-2111) |
Digital signatures [?]
91.exe is not signed.
VirusTotal report
38 of the 42 anti-virus programs at VirusTotal detected the 91.exe file. That's a 90% detection rate.
| Scanner | Detection Name |
|---|---|
| AhnLab-V3 | Backdoor/Win32.Sinowal |
| AntiVir | TR/Kazy.3545812 |
| Avast | Win32:Sinowal-JA [Trj] |
| AVG | PSW.Agent.7.AZ |
| BitDefender | Trojan.PWS.Sinowal.NCX |
| CAT-QuickHeal | Backdoor.Sinowal.odq |
| ClamAV | Trojan.Sinowal-2045 |
| Commtouch | W32/Sinowal.AA.gen!Eldorado |
| Comodo | UnclassifiedMalware |
| DrWeb | BackDoor.MaosBoot.377 |
| Emsisoft | Backdoor.Win32.Sinowal!IK |
| eSafe | Win32.TRKazy |
| eTrust-Vet | Win32/Sinowal.F!generic |
| F-Prot | W32/Sinowal.AA.gen!Eldorado |
| F-Secure | Trojan.PWS.Sinowal.NCX |
| Fortinet | W32/Sinowal.P!tr.bdr |
| GData | Trojan.PWS.Sinowal.NCX |
| Ikarus | Backdoor.Win32.Sinowal |
| Jiangmin | Backdoor/Sinowal.rou |
| K7AntiVirus | Backdoor |
| Kaspersky | Backdoor.Win32.Sinowal.odq |
| McAfee | BackDoor-DWL |
| McAfee-GW-Edition | BackDoor-DWL |
| Microsoft | PWS:Win32/Sinowal.gen!AA |
| NOD32 | a variant of Win32/Kryptik.SJI |
| Norman | Sinowal.FSP |
| nProtect | Backdoor/W32.Sinowal.44032.M |
| Panda | Suspicious file |
| PCTools | Trojan.Litagody |
| Rising | Trojan.Win32.Generic.1295AE9F |
| Sophos | Mal/Sinowal-N |
| Symantec | Trojan.Litagody |
| TheHacker | Backdoor/Sinowal.odq |
| TrendMicro | BKDR_SINOWAL.TW |
| TrendMicro-HouseCall | BKDR_SINOWAL.TW |
| VBA32 | Backdoor.Sinowal.odq |
| VIPRE | Trojan-Dropper.Win32.Sinowal.y (v) |
| VirusBuster | Trojan.DR.Sinowal.Gen.20 |
91.exe removal instructions
The instructions below shows how to remove 91.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the 91.exe file for removal, restart your computer and scan it again to verify that 91.exe has been successfully removed. Here are the removal instructions in more detail:
- Download and install FreeFixer: http://www.freefixer.com/download.html
- Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
- When the scan is finished, locate 91.exe in the scan result and tick the checkbox next to the 91.exe file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate 91.exe in the scan result.
c:\Documents and Settings\roger\Desktop\m\10\91.exe 
- Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the 91.exe file.
- Restart your computer.
- Start FreeFixer and scan your computer again. If 91.exe still remains in the scan result, proceed with the next step. If 91.exe is gone from the scan result you're done.
- If 91.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
- Restart your computer.
- Start FreeFixer and scan your computer again. Verify that 91.exe no longer appear in the scan result.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 7a3a7ee2c087e38fcda57a0c3bd5b4ae |
| SHA256 | a10989ff182315499b64b79de2b623ea121cbc71d8bd9c38cc586e63af710920 |
Error Messages
These are some of the error messages that can appear related to 91.exe:
91.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
91.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
Windows NT Setup Executable has stopped working.
End Program - 91.exe. This program is not responding.
91.exe is not a valid Win32 application.
91.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with 91.exe?
To help other users, please let us know what you will do with 91.exe:
What did other users do?
The poll result listed below shows what users chose to do with 91.exe. 100% have voted for removal. Based on votes from 1 user.
| Votes | |||
|---|---|---|---|
| Keep | 0 % | 0 | |
| Remove | 100 % | 1 |
NOTE: Please do not use this poll as the only source of input to determine what you will do with 91.exe. Only 1 user has voted so far so it does not offer a high degree of confidence.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
No comments posted yet.